<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
  <form action="../cookieServlet">
      <input type="hidden" name="action" value="login">
      用户名:<input name="username"  value="${cookie.usernamek.value}" type="text">
      密码:<input name="password" type="text">
      <input type="submit">
  </form>

</body>
</html>